“unknown”

The third-person singular neuter personal pronoun used to refer to an inanimate object, abstract entity, or non-human living thing.

A person who identifies as male, or animal already known or implied.

The female (typically) person or animal previously mentioned or implied.

The aggregate of past events, both unrecorded and recorded.

Having wandered from, or unable to find, the way.

An unknown or unspecified number of.